package object;

import sun.java2d.pipe.SpanIterator;

public class IntegerDemo {
    public static void main(String[] args) {
        /*
        Integer i1=new Integer(5);
        Integer i2=new Integer(5);
        System.out.println(i1==i2);
        System.out.println(i1.equals(i2));

        Integer i3=Integer.valueOf(5);
        Integer i4=Integer.valueOf(5);
        System.out.println(i3==i4);
        System.out.println(i3.equals(i4));
        int i=i4.intValue();
        System.out.println(i);




        Integer i=5;
        int j=i;
        int max=Integer.MAX_VALUE;
        int min=Integer.MIN_VALUE;
        System.out.println("int的最大值为"+max+"最小值为"+min);
        long max1=Long.MAX_VALUE;
        long min1=Long.MIN_VALUE;
        System.out.println("long的最大值为"+max1+"最小值为"+min1);

        String s1="39";
        int age=Integer.parseInt(s1);
        System.out.println(s1);
        String s2="123.456";
        double price=Double.parseDouble(s2);
        System.out.println(s2);

         */

        /*
        Integer i1=new Integer(5);
        Integer i2=new Integer(5);
        System.out.println(i1==i2);
        System.out.println(i1.equals(i2));

        Integer i3=Integer.valueOf(5);
        Integer i4=Integer.valueOf(5);
        System.out.println(i3==i4);
        System.out.println(i3.equals(i4));
        int i=i4.intValue();
        System.out.println(i);




        Integer i=5;
        int j=i;
        int max=Integer.MAX_VALUE;
        int min=Integer.MIN_VALUE;
        System.out.println("int的最大值为"+max+"最小值为"+min);
        long max1=Long.MAX_VALUE;
        long min1=Long.MIN_VALUE;
        System.out.println("long的最大值为"+max1+"最小值为"+min1);

        String s1="39";
        int age=Integer.parseInt(s1);
        System.out.println(s1);
        String s2="123.456";
        double price=Double.parseDouble(s2);
        System.out.println(s2);

         */
    }
}
